Testing if the Processes of Desposition are Stronger than Processes of Erosion on the Beach

Goal 1 - Destructive or constructive exploration: Objective 1 Test whether the deposition process is stronger than the coastal erosion process. The first goal was trading on the beach at Site 2 by Groynes. This is mainly because Groynes is necessary to support the investigation. Another site may be suitable, but my team is clearly located and the dock is there. This may interfere with our results.

Wave refraction is an important process because it affects erosion of Otakamiro horn and wave of Muriwai beach (see Figure 1). Longshore Drift changes spatially due to wave refraction. This is the process by which waves change paths to interact with the ocean floor along the coastline in shallow waters. This process causes erosion of waves and concentrates energy on the Otakamiro Point. Wind erosion is the propulsion mechanism of coastal transport and coastal sedimentation. Strong wind has better erosion in coastal areas of Muriwai. Windy diets are most effective for drainage-friendly topography like sand dunes. Loose particles are more susceptible to erosion than moist heavy soil, sand, rock

Coastal erosion is a natural process by which sand and rocks are removed from coastlines by various corrosive agents. Wave erosion is one of the main erosive agents that destroy rock eroded beaches. In coastal erosion, land moves permanently from one area to another. The strength of erosion along the beach is influenced by the strength of the wave that corresponds to it; the strength of the wave depends on the tide and the density of the water. Coastal erosion usually affects most people living along the coastline, as well as marine organisms that inhabit very shallow parts of estuaries, bays and the ocean.

Coastal erosion and diffusion are studied from the viewpoints of sediment movement under wind, wave and tidal current, sediment / beach dynamics in coastal cells, catchment, river catchment area, watershed and offshore human activities It is a complex process that requires. Including space-time scale. On the time scale, the problem of sea level rise is complicated and causes various environmental problems. As the sea level goes up, the water depth gets deeper and the wave base becomes deeper; the waves arriving at the coast have more energy and can erode and transport more sediments. As a result, coasts have adapted to new sea level to maintain dynamic balance. Figure 4.2 shows the coastal erosion and diffusion process, as well as natural factors and human activities.